Aldehydes, Ketones, Carboxylic Acids Quiz

The functional group for aldehydes is:

• -COOH

• -OH

• -CHO

• -CO

Which of the following is an example of a ketone?

• Ethanal

• Propanone

• Methanol

• Ethanoic acid

The IUPAC name for CH3CH2CH2CHO is:

• Butanal

• Propanal

• Ethanal

• Pentanal

Carboxylic acids can be prepared by the oxidation of:

• Alkenes only

• Primary alcohols only

• Aldehydes only

• All of the above

Which reagent is NOT commonly used for the oxidation of primary alcohols to aldehydes?

• Potassium dichromate (K2Cr2O7)

• Potassium permanganate (KMnO4)

• Sodium ethanoate (CH3COONa)

• PCC (pyridinium chlorochromate)

The ozonolysis of an alkene can produce:

• Aldehydes only

• Ketones only

• A mixture of aldehydes and ketones

• Carboxylic acids only

The acidity of carboxylic acids is stronger than that of alcohols because of:

• Presence of a carbonyl group

• Presence of a hydroxyl group

• More carbon atoms in the chain

• Lower boiling point

Which of the following statements about aldehydes and ketones is INCORRECT?

• Both can form hydrogen bonds.

• Aldehydes have a higher boiling point than ketones with similar chain lengths.

• Both can undergo nucleophilic addition reactions.

• Ketones have two sp2 hybridized carbon atoms.

Formaldehyde, a common disinfectant, has the formula:

• HCHO

• CH3CHO

• CH3COOH

• C2H5OH

The common name for CH3CH2COOH is:

• Formic acid

• Acetic acid

• Butyric acid

• Propionic acid